Finding the Fourth Proportional to 420,202.84, 579,883.62 and 229,217.08
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Solution
The fourth proportional to 420,202.84, 579,883.62 and 229,217.08 is: 316,321.59
Step by Step Solution
- Step 1: Write the proportion equation
420,202.84 : 579,883.62 = 229,217.08 : x - Step 2: Convert to fraction form
420,202.84/579,883.62 = 229,217.08/x - Step 3: Cross multiply
420,202.84x = 579,883.62 × 229,217.08 - Step 4: Simplify right side
420,202.84x = 132,919,230,116.23 - Step 5: Solve for x
x = 132,919,230,116.23/420,202.84 - Step 6: Final answer
x = 316,321.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.